TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TM-9-2815-220-24 - Page 207 of 1563

TM 9-2815-220-24

THREADED INSERT REPLACEMENT

0030 00

INSPECTION

1. When replacing threaded inserts, inspect

component threads for wear or stripping.

a. If component threads are damaged,

and a standard insert is in use, install

an oversize insert.

Go to Repair.

b. If component threads are damaged

and a lock-ring type insert is in use,

component must be replaced.

Go to

End of Work Package.

c. If replacing a lock-ring type insert in

an undamaged component, go to

Installation, step 1.

d. If replacing a standard insert with a

standard insert, go to Installation,

step 8.

NOTE

If component threads are not

damaged but internal threads of

insert are damaged, either type insert

may be replaced.

REPAIR

1. Bore out tapped hole (A) in

component (8).

a. Using portable electric drill and step

drill (10) for oversize inserts, bore

tapped hole (A) to counterbore

depth (B).

WARNING

Compressed air can injure you

and others.

Do not aim air at

personnel.

Do not use more than

30 psi.

Always wear goggles.

2. Clean hole (A).

a. Using compressed air, blow metal

chips out of hole.

3. Tap hole (A).

a. Coat thread cutting tap (11) for

oversize insert with engine oil.

b. Using tap wrench and tap (11) cut

threads until tap bottoms.

4. Clean newly tapped hole (A).

a. Using compressed air, blow out metal

chips.

5. Go to Installation, step 8.

A

A

8

10

11

A

B

8

A

WP 0030 00-3